This is a list of all characters from the British children's television series Thomas & Friends and the reboot series Thomas & Friends: All Engines Go.

Name	Number	Description	Based on	Voiced by (UK)	Voiced by (US)
Thomas	NWR 01/LBSCR 70	A little blue 0-6-0 tank engine who works on the Island of Sodor on the North Western Railway. He initially worked as the station pilot at Knapford. After helping to rescue James from an accident, Thomas was rewarded by being permanently assigned to the Ffarquhar branch line with his two coaches, Annie and Clarabel.	LB&SCR E2 class (with extended side tanks)	Ben Small (2009–2015) John Hasler (2015–2021) Aaron Barashi (All Engines Go first and second series) Shaun Jemmett (All Engines Go third and fourth series)	Martin Sherman (2009–2015) Joseph May (2015–2020) Meesha Contreras (All Engines Go first and second series) David Kohlsmith (All Engines Go second series) Kai Harris (All Engines Go third and fourth series)
Gordon	NWR 04	A big blue tender engine; his main task is to pull the railway's express train, but has occasionally pulled goods trains, which he dislikes as he believes that these are below him. He is Flying Scotsman's older brother and Spencer's cousin. Gordon works on the main line and shares duties with Rebecca from the twenty-second series to the twenty-fourth series.	LNER Gresley Classes A1 and A3	Keith Wickham (2009–2021) Will-Harrison Wallace (All Engines Go)	Kerry Shale (2009–2020) Neil Crone (All Engines Go)
James	NWR 05	A red mixed-traffic tender engine. He does not like pulling trucks, and feels superior to the others except the big engines. James is an experimental version of the class, having an extended running board and front pony truck. The experiment failed and he was soon bought by Sir Topham Hatt.	Lancashire & Yorkshire Railway Class 28	Keith Wickham (2009–2017) Rob Rackstraw (2017–2021) Tom Dussek (All Engines Go)	Kerry Shale (2009–2015) Rob Rackstraw (2015–2020) Luke Marty (All Engines Go)
Percy	NWR 06	A green saddle tank engine. He was first brought to Sodor while Gordon, James and Henry were on strike and later became the station pilot at Knapford. Following the renovation of the New Harbour, Percy was relocated to Thomas' branch line, where he now works as a goods engine.	GWR No. 1340 Trojan	Keith Wickham (2009–2015) Nigel Pilkington (2015–2021) Henri Charles (All Engines Go first and second series) Oliver Milchard (All Engines Go third and fourth series)	Martin Sherman (2009–2015) Christopher Ragland (2015–2020) Charlie Zeltzer (All Engines Go)
Emily	NWR 12	An emerald tender engine. When Emily was new to Sodor, she borrowed Annie and Clarabel without Thomas' knowledge, to the shock of the other engines. The matter was resolved after she saved Oliver from a nasty accident and she was rewarded with two new coaches.	GNR Stirling 4-2-2	Teresa Gallagher (2009–2021) Marie Ekins (All Engines Go)	Jules de Jongh (2009–2020) Kayla Lorette (All Engines Go)
Nia	NWR 18	An orange tank engine from Kenya, Nia often helps out at the Sodor Animal Park on the Brendam Branch Line.	KUR ED1 class	Yvonne Grundy (2018–2021) Sade Smith (All Engines Go)	Yvonne Grundy (2018–2021) Talia Evans (All Engines Go)
Rebecca	NWR 22	A yellow tender engine, Rebecca works on the main line, and either pulls the railway's express or mixed-traffic trains.	SR West Country and Battle of Britain classes	Rachael Miller

Name	Number	Description	Based on	Voiced by (UK)	Voiced by (US)
Edward	NWR 02	A blue mixed-traffic tender engine. He runs the Brendam Branch Line with BoCo and is one of the oldest engines on Sodor.	Furness Railway K2 class	Keith Wickham (2009–2020) Unknown voice actor (All Engines Go)	William Hope (2009–2020) Unknown voice actor (All Engines Go)
Henry	NWR 03	A green mixed-traffic tender engine. He originally had a smaller firebox and needed special Welsh coal. Following his accident when pulling the Flying Kipper, Henry underwent an extensive rebuild, giving him a new shape and better performance.	LNER Gresley Classes A1 and A3/GNR Class C1 (large boiler) (hybrid) (old shape; Henry I) LMS Stanier Class 5 4-6-0 (new shape; Henry II)	Keith Wickham (2009–2020) Unknown voice actor (All Engines Go)	Kerry Shale (2009–2020) Unknown voice actor (All Engines Go)
Toby	NWR 07	A brown tram engine who lives and works on the Island of Sodor on the North Western Railway. He used to work on a tramway between Lower Arlesburgh and Arlesdale End, before being bought by Sir Topham Hatt after his line closed down to run the tramway to Ffarquhar Quarry. His line would later be reopened as part of the North Western Railway, with Toby being reallocated to his old shed. He has a coach named Henrietta.	GER Class C53	Ben Small (2009–2015) Rob Rackstraw (2015–2021) Toby Hadoke (All Engines Go)	William Hope (2009–2020) Edward Glen (All Engines Go)

Name	Number	Description	Based on	Voiced by (UK)	Voiced by (US)
Duck	NWR 08	A green Great Western pannier tank engine who lives and works on the Island of Sodor on the North Western Railway. Duck’s real name is Montague. Montague goes by "Duck" because some engines say he "waddles" as he moves along, though he doesn't really. Duck prefers this nickname over his real name. He thinks that there are two ways of doing things: the Great Western way and the wrong way. He runs his own branch line along with Oliver, and his three Slip Coaches, which he affectionally refers to as the "Slippies".	GWR 5700 Class	Steven Kynman (2013-2019)
Donald and Douglas	NWR 09 and 10	A pair of black tender engines from Scotland who live and work on the Island of Sodor on the North Western Railway. Originally, Sir Topham Hatt had only ordered Donald to work on his railway, but Douglas stowed away with him to avoid being scrapped. After many misadventures, both engines were kept. They tend to work together, although they can be argumentative.	Caledonian Railway 812 and 652 Classes	Donald | Joe Mills (2015–2016, specials only) Rob Rackstraw (2016–2018) Douglas | Joe Mills (2015-2018)
Oliver	NWR 11	A green Great Western tank engine who lives and works on the Island of Sodor on the North Western Railway. After being saved from scrap by Douglas, he runs the Little Western with Duck and his own brake van, Toad.	GWR 1400 Class	Joe Mills (2014-2018)
Bill and Ben	SCC 01 and 02	A pair of yellow saddle tank engine twins belonging to the Sodor China Clay Company. They both work in the china clay pits, and at Brendam Docks, where they shunt trucks.	"Alfred" and "Judy"	Bill | Jonathan Broadbent (2013–2016) Tim Whitnall (2018) Rasmus Hardiker (2018–2020) Ben | Jonathan Broadbent (2013–2016) Matt Wilkinson (2018–2020)
Diesel		A black diesel engine who originates from the Mainland, and is the first standard gauge diesel to have ever arrived on Sodor. He has an oily, devious, scheming, and malicious nature, and holds a grudge against the steam engines. Initially, he was sent away for bad behaviour, but after a number of return visits, he eventually becomes a permanent member of the North Western Railway.	British Rail Class 08	Kerry Shale (2010–2021) Henry Harrison (All Engines Go)	Michael Brandon (2010–2012) Martin Sherman (2013–2014) Kerry Shale (2015–2021) Shomoy James Mitchell (All Engines Go first series only) Will Bhaneja (All Engines Go second series onwards)
Daisy		A green diesel railcar who came to work on the Ffarquhar Branch Line in place of Thomas after he crashed into the Stationmaster's house. She now works on the Harwick Branch Line carrying out passenger duties, while Ryan runs the goods duties.	British Rail Class 122	Teresa Gallagher (2015–2016, specials only, 2018) Tracy-Ann Oberman (2016–2021)
BoCo	BR D5702	A green mixed-traffic diesel engine who primarily works on Edward's Branch Line and occasionally on the Main Line. He, along with Edward, are mentors to Bill and Ben.	British Rail Class 28
City of Truro	GWR 3440	A famous tender engine from the Great Western Railway, who once visited the Island of Sodor. He is one of the three real-world tender engines to have appeared in the main series. In the episode "Gordon & the Famous Visitor", he is only referred to as "The Famous Engine", although a banner outside the sheds features his name and number. He normally resides at the STEAM Museum on the Mainland.	GWR 3700 Class 3440 City of Truro
Mavis	FQC 01	A privately owned diesel shunter who works at the Ffarquhar Quarry, mainly rearranging trucks in different sidings, and previously the Sodor Slate Quarry.	British Rail Class 04	Teresa Gallagher (2010–2017)	Jules de Jongh (2010–2012) Teresa Gallagher (2013–2017)
Flying Scotsman	LNER 4472	An LNER Class A3 Pacific. Flying Scotsman holds the record for being the first engine to officially run at over 100 mph. In addition, Flying Scotsman has been described as the world's most famous steam locomotive. Flying Scotsman is named after a service that runs from London King's Cross to Edinburgh Waverley. He is Gordon's younger brother.	LNER Class A3 4472 Flying Scotsman	Rufus Jones (2016-2018)
Stepney	LBSCR 55	A tank engine, named after a district in London, who was saved from scrap by Rusty and lives on the Bluebell Railway. His friendly, enthusiastic attitude makes him a welcome visitor on Sir Topham Hatt's railway.	LB&SCR A1 class
Class 40	BR D261	A big green diesel engine who once visited the North Western Railway on loan from British Railways. He was brought to Sodor to help the other engines. He intentionally sucked in an inspector's bowler hat through his air intake, which lead to his engine failing. Afterwards, he was sent away in disgrace, leaving behind "a rather nasty smell, and a battered bowler hat".	British Rail Class 40
Derek		A large green diesel engine who is known for his initial "teething" troubles. He was not officially named until merchandise was released. He is friends with Bill and Ben and works for the Sodor China Clay Company.	British Rail Class 17
Iron 'Arry and Iron Bert		Twin diesel shunters who work at the Sodor Ironworks.	British Rail Class 08	Kerry Shale (2010–2011, Iron 'Arry and Iron Bert) (2012–2017, Iron Bert Only) William Hope (2012–2017, Iron Bert)
Diesel 10		An evil diesel engine with a claw whom he named "Pinchy".	British Rail Class 42	Matt Wilkinson
Salty	BR 2991	A crimson red dockside diesel shunter who works at Brendam Docks. He speaks like a stereotypical pirate and enjoys telling stories revolving around the sea and fantasy.	British Rail Class 07	Keith Wickham (2010–2021) Guy Harris (All Engines Go)	Keith Wickham (2010–2021) Scott McCord (All Engines Go)
Harvey	NWR 27	A merlot crane tank engine who lives and works on the Island of Sodor on the North Western Railway.	Shelton Iron & Steel Works No. 4101, or "Dusby" *	Keith Wickham
Fergus		A small railway traction engine who works at the Sodor Cement Works.	Aveling & Porter 2-2-0WT "Blue Circle"
Arthur		A large maroon tank engine originating from the London, Midland and Scottish Railway who runs the line to the Fishing Village. He was very proud of his spotless record, which was broken when he crashed into Duck's goods train after Thomas tricked him.	LMS Ivatt Class 2 2-6-2T
Murdoch		An orange tender engine that pulls heavy goods trains.	BR Standard Class 9F
Spencer		The Duke and Duchess of Boxford's silver streamlined tender engine from the Mainland and is Gordon's cousin and arch-rival.	LNER Class A4	Matt Wilkinson	Glenn Wrage
Molly		A powerful, yellow mixed-traffic tender engine who primarily works on the Main Line of the North Western Railway.	GER Class D56
Neville	BR 33010	A kind, ubiquitous, black square-shaped tender engine, who has a bridge named after his brutal accident.	SR Q1 class
Dennis	11001	A lazy diesel who dislikes hard work, but enjoys making other engines do it for him.	British Rail 11001
Rosie	NWR 37	A lively little tank engine who lives and works on the Island of Sodor on the North Western Railway. She originally wore a lavender livery and primarily worked at Knapford Yards. She has since been repainted red and is now the head shunter at Vicarstown.	S100 SR USA class	Teresa Gallagher (2010–2012) Nicola Stapleton (2017–2020)	Jules de Jongh (2010–2012) Nicola Stapleton (2017–2020)
Whiff	NWR/NER 66	A grubby green tank engine who wears glasses. His main task is to collect rubbish and scrap, which explains his dirty appearance and smell.	NER 66 Aerolite	Keith Wickham (2010–2018) Matt Coles (All Engines Go)	William Hope (2010–2018) Joe Pingue (All Engines Go)
Billy		An enthusiastic but impatient and immature orange saddle tank engine with prominent buckteeth.	Manning Wardle
Stanley		A silver saddle tank engine who works as a shunting engine on the North Western Railway.	Hudswell Clarke's 0-6-0ST	Matt Wilkinson (2011–2018) David Menkin (2015) Rob Rackstraw (2020)	Kerry Shale (2011) Ben Small (2011–2015) David Menkin (2015) Rob Rackstraw (2016–2020) John Schwab (2016)
Hank		A large, strong American tender engine who is both helpful and confident. When he first arrived on Sodor, a welcome party was shortly thrown for him.	Pennsylvania Railroad class K4
Flora		A bright yellow steam tram who works for Sodor Tramways in Great Waterton. She has her own tramcar, which is her pride and joy.	Mostly Road Steam Tram
Hiro	51	An old and wise Japanese tender engine who is famously known as the "Master of the Railway".	JNR Class D51	Togo Igawa (2009–2021) Dai Tabuchi (All Engines Go)	Togo Igawa (2009–2020) Kintaro Akiyama (All Engines Go)
Charlie	NWR 14	A playful purple saddle tank engine who lives and works on the Island of Sodor on the North Western Railway. He loves to tell jokes and have fun, and works as a shunter in Knapford Yards.	Manning Wardle	Matt Wilkinson (2009-2014) Steven Kynman (2016)	Glenn Wrage (2009–2011) Ben Small (2012–2014) Steven Kynman (2016)
Bash and Dash		Fun-loving grey and yellow tank engine twins who live on Misty Island with Ferdinand.	Bear Harbor Lumber Company No. 1	Matt Wilkinson (Bash) Keith Wickham (Dash)	William Hope (Bash) Kerry Shale (Dash)
Ferdinand		A humble, dark teal tender engine who lives on Misty Island with Bash and Dash. His catchphrase is "That's right!"	Climax Class C	Ben Small	Glenn Wrage
Scruff		A boxy tank engine who works at the Waste Dump with Whiff.	Sentinel 969 0-4-0 Industrial Locomotive	Matt Wilkinson	Kerry Shale
Belle	6120	A large blue tank engine who is part of the Search and Rescue Team and has a bell and water cannons on top of her tanks.	BR Standard Class 4 2-6-4T	Teresa Gallagher
Paxton		A kindhearted green diesel engine who often brings slate down from the Blue Mountain Quarry to other parts of Sodor.	British Rail Class 08	Keith Wickham (2011) Steven Kynman (2012–2020)
Norman		A reddish-orange diesel shunter with a unibrow who is Dennis' twin.	British Rail 11001	Kerry Shale (2011) Keith Wickham (2012-2020)
Den		A big hydraulic diesel engine who runs the Vicarstown Dieselworks.	Rolls-Royce C range engines	Keith Wickham (2011-2020) Rupert Degas (2011)
Dart		A small diesel shunter who is Den's best friend and assistant at the Vicarstown Dieselworks.	Bagnall No. 3207 Leys	Rupert Degas (2011–2012) Steven Kynman (2013–2019)
Sidney		A forgetful blue diesel engine who is good friends with Percy. He often takes goods trains to the Mainland. He had been lifted on a hoist at the Dieselworks for two years, waiting for his new wheels to come. As a Christmas present, Percy gave Sidney a new set of wheels, and he is now a really useful engine again.	British Rail Class 08	Kerry Shale (2011) Bob Golding (2013-2019)
Flynn		A fire engine who is part of the Search and Rescue Team and is a road-rail vehicle.	Oshkosh W800 ARFF	Rupert Degas (2011–2013) Ben Small (2013) Kerry Shale (2015) Rob Rackstraw (2015–2019)
Winston		Sir Topham Hatt's red rail inspection car and his primary mode of transportation on the North Western Railway.	Wickham trolley	Matt Wilkinson (2012–2021) Guy Harris (All Engines Go)	Matt Wilkinson (2012–2021) Ivan Sherry (All Engines Go)
Stafford	1917	A battery-electric engine who works in Knapford Yards.	NSR Battery-Electric No. 1	Keith Wickham
Stephen		An early wooden steam engine who works at Ulfstead Castle, where he takes visitors around the castle grounds and across the rest of Sodor.	Stephenson's Rocket	Bob Golding
Connor		An aquamarine streamlined tender engine from the Mainland, who is designed and built for speed. He has his own rake of coaches painted in the same livery as him.	New York Central Hudson	Jonathan Forbes
Caitlin		A magenta streamlined tender engine from the Mainland, who is designed and built for speed. She has her own rake of coaches painted in the same livery as her.	Baltimore and Ohio P-7	Rebecca O'Mara (2013–2016) Jules de Jongh (2017–2019)
Porter		A viridian saddle tank engine who works at Brendam Docks, usually shunting trucks.	H.K. Porter 0-6-0ST	Steven Kynman (2013–2019)	David Menkin
Timothy		A little oil-burning saddle tank engine who works at the Sodor China Clay Company with Bill, Ben, and Marion.	Bell Open Cab Oil Burner	Tim Whitnall
Gator		A large green tank engine that ends up on Sodor from Colombia by mistake.	Colombia Steam Motor	Clive Mantle
Marion		An orange rail-mounted steam shovel. She usually works at the Clay Pits with Bill, Ben, and Timothy, although she can be at any digging site on the North Western Railway.	Marion Model 40	Olivia Colman (2014–2018) Lucy Montgomery (2020)
Samson	15	A dark teal saddle tank engine without a cab who works on the Mainland. He works with his personal brake van Bradford.	Barclay & Co. No. 214	Robert Wilfort
Glynn	NWR 1 (formerly)	A "coffee pot" engine that used to work on Thomas' Branch Line before being abandoned. He was restored and now works alongside Stephen and Millie at Ulfstead Castle.	Head Wringtson & Co. Ltd. Type 1 "Coffee Pot No. 1"	Keith Wickham
Ryan	GNR 1014	A purple tank engine who works as a goods engine on the Harwick Branch Line.	GNR Class N2	Eddie Redmayne (2015, SLOTLT only) Steven Kynman (2016–2017)
Skiff		A railboat who now gives railboat tours around Arlesburgh Harbour with his new owner, Captain Joe.	Eastport Pram	Jamie Campbell Bower (2015–2020) Jai Armstrong (All Engines Go)	Jamie Campbell Bower (2015–2020) Jamie Watson (All Engines Go)
Philip	NWR 68	A little diesel boxcab who lives and works on the Island of Sodor on the North Western Railway. He works as a station pilot at Knapford and lives in Wellsworth Sheds with Edward.	Pennsylvania Railroad Class A6	Rasmus Hardiker (2015-2020)
Ashima		A large pink tank engine who worked on the Nilgiri Mountain Railway and then Indian Railways.	Nilgiri Mountain Railway X class	Tina Desai (2018–2020) Sandeep Garcha (All Engines Go)	Tina Desai (2018–2020) Diya Kittur (All Engines Go)
Gina		A small Italian tank engine.	FNM Class 200	Teresa Gallagher (2016) Anna Francolini (2019-2020)
Yong Bao		A Chinese tender engine.	China Railways RM	Dan Li (2018–2019) Chris Lew Kumi Hoi (2020–2021) Lobo Chan (All Engines Go)	Dan Li (2018–2019) Chris Lew Kumi Hoi (2020–2021) Patrick Kwok-Choon (All Engines Go)
Raul	166	A vertical-boiler tank engine who works on the Brazilian Railway.	SPR Type W No. 166	Federico Trujilo
Shane	520	An Australian tender engine.	South Australian Railways 520 class	Shane Jacobson
Rajiv		An Indian tank engine.	Fairy Queen locomotive	Nikhil Parmar
Hugo		A silver rail zeppelin, unique for being fitted with a propeller. He is a very fast engine, whose spinning propellers makes him very popular with passengers.	Schienenzeppelin	Rob Rackstraw
Merlin	783	An experimental tender engine with three chimneys who believes he has the power to turn invisible.	LSWR N15 class	Hugh Bonneville
Fernando		A teal diesel shunter who works on a railway near Brazil.	British Rail Class 08	Gabriel Porras
Shankar		A diesel shunter who works on the Indian Railway.	TGM23 Class	Sanjeev Bhaskar
Hong-Mei	CR 01	A Chinese tank engine Thomas met during his stay in China. She has her own pair of coaches named An-An and Yin-Long, whom are occasionally used by Thomas. One of her main jobs is to pull the Mail Train.	China Railways GJ	Chipo Chung
Tamika	23	A yellow Australian steam railmotor who works in the Kuranda Rainforest.	SAR SMC Class	Rose Robinson
Noor Jehan		A diesel engine who works on Indian Railways. She takes visitors on a tiger safari in a set of express coaches painted in the same livery as her.	Indian locomotive class WDM-2	Sheena Bhattessa
Gabriela		A tank engine who works at Guanabara Bay in Brazil. She is good friends with Cassia.	Baroneza II	Monica Lopera
Lorenzo		An Italian tender engine from Verona. He was lost in a mine for several years before being rediscovered by Thomas. He has a coach named Beppe.	FS Class 743	Vincenzo Nicoli
Gustavo	04	A large electric engine who works on the Brazilian Railway.	Little Joe loco	Francisco Labbe
Marcia and Marcio		Two wood-burning tender engines who work on the Eucalyptus Railway in Brazil.	ABPF No. 215 Maria Fumaca	Laura Cucurullo (Marcia) Federico Trujillo (Marcio)
Sonny	1842	A well tank engine who used to work at a coal mine and was brought to Sodor by two criminals named Baz and Bernie, but later joined the North Western Railway. After meeting Thomas and helping out at the fair, Sonny wanted to be a really useful engine rather than a thief. After Baz and Bernie were captured and arrested for their crimes, Sir Topham Hatt decided to give Sonny a second chance by letting him work on his railway.	Haydock Collieries	Joe Swash
Kenji		A high-speed electric engine from Japan, who visited Sodor for the Technology Fair.	0 Series Shinkansen	Matt McCooey (2020) Dan Tabuchi (All Engines Go)	Matt McCooey (2020) Kintaro Akiyama (All Engines Go)
Duchess	LMS 2020	A large ivory-coloured tender engine that works on the Mainland. Her job is to transport the Royal Family to all their royal appointments.	LMS Coronation Class	Rosamund Pike
Kana		A lavender Japanese bullet train who lives and works on the North Western Railway and the first bullet train to live on Sodor. She has two passenger coaches painted in the same livery as her. She loves to race, and often creates gusts of wind due to her speed. Kana sometimes has some trouble with burning out her batteries.	E8 Series Shinkansen	Chloe Raphael (All Engines Go)	Ava Ro (All Engines Go)
Sandy		A pink rail speeder who lives and works on the Island of Sodor. She is close friends with Carly and works with her at their maintenance yard. The two of them share the railway's repair duties.	Rail Speeder	Holly Dixon (All Engines Go)	Glee Dango (All Engines Go)

Name	Number	Description	Based on	Voiced by (UK)	Voiced by (US)
Skarloey	SR 01	A red narrow gauge saddle tank engine and is one of the oldest engines on the Skarloey Railway.	Talyllyn	Keith Wickham
Rheneas	SR 02	A vermillion narrow gauge well tank engine and the Skarloey Railway's second engine. Rheneas has the nickname "Gallant Old Engine", after saving the railway from closure.	Dolgoch	Ben Small (2012–2014) John Hasler (2016)
Sir Handel	SR/MSR 3	A blue narrow gauge saddle tank engine originally of the Mid Sodor Railway, where he was named "Falcon". He now works on the Skarloey Railway.	Sir Haydn	Keith Wickham
Peter Sam	SR/MSR 04	A green narrow gauge saddle tank engine originally of the Mid Sodor Railway, where he was named "Stuart". He now works on the Skarloey Railway. Following an accident with some slate trucks, Peter Sam lost his funnel and was fitted with a special funnel as a replacement.	Edward Thomas	Steven Kynman
Rusty	SR 05	A kind orange little narrow gauge diesel engine who carries out maintenance work and odd jobs on the Skarloey Railway.	Midlander	Matt Wilkinson
Duncan	SR 06	A grumpy yellow Scottish narrow gauge well tank engine on the Skarloey Railway. He came to the Skarloey Railway as a spare engine after Peter Sam's accident with some slate trucks.	Douglas	Tom Stourton
Freddie	SR 07	An old narrow gauge tank engine on the Skarloey Railway.	Russell
Duke	SR 08	An orange-brown narrow gauge tank-tender engine who is widely respected and considered a hero amongst all the engines. He is also one of the oldest engines on Sodor, having been ordered by and named after "His Grace" the Duke of Sodor for the Mid Sodor Railway. He was left in his old shed after his railway closed down, but was eventually rediscovered and put to work on the Skarloey Railway.	Festiniog Railway 0-4-0TT
Smudger		An olive green narrow gauge tank engine who used to work on the Mid Sodor Railway. He was later turned into a generator due to his tendency to misbehave and derail frequently.	Dolgoch
Bertram		An old narrow gauge tank-tender engine who worked at the mines. His real name is "The Old Warrior", but was nicknamed "Bertram" because of his bravery. He lived on a remote part of the Island that was once rarely visited. His railway has since been restored as a fairground and he now pulls passenger trains on it.	Festiniog Railway 0-4-0TT
Mighty Mac		A blue double-ended engine and conjoined twins. Mighty is the "older" of the two and is distinguished by a small flick of hair. Mac is the "younger" half and is distinguished his youthful features, round nose, and freckled cheeks. Despite the opposing personalities of the two ends, they are technically one engine.	Fairlie locomotive
Proteus		A legendary yellow narrow gauge saddle tank engine with a magic lamp hung upon his funnel.	Sir Haydn
Victor		A dark red narrow gauge tank engine from Cuba who works at the Sodor Steamworks with his assistant, Kevin.	Minaz Co., No. 1173	Matt Wilkinson (2009-2012) David Bedella (2012-2021)	David Bedella (2009-2020)
Luke	SR 22	A green Irish narrow gauge saddle tank engine who works primarily at the Blue Mountain Quarry on the Skarloey Railway.	'Peter Pan', a 'Wren' class locomotive	Michael Legge
Millie		A light blue narrow gauge engine from France. She helps run Sir Robert Norramby's Estate Railway at Ulfstead Castle. Her duties include assisting the Groundskeeper and taking visitors on tours of the estate. For this, she has her own set of open-topped coaches.	Decauville No. 8069 Tabamar	Miranda Raison

Name	Description	Based on	Voiced by
Rex	A green miniature tender engine who lives and works on the Arlesdale Railway. He is a natural leader but can be very cocky at times.	River Esk	Tom Stourton
Mike	A red miniature tender engine who works on the Arlesdale Railway. He prefers goods to passengers.	River Mite	Tim Whitnall
Bert	A blue miniature tender engine who works on the Arlesdale Railway.	River Irt	Keith Wickham

Name	Number	Description	Based on	Voiced by (UK)	Voiced by (US)
Troublesome Trucks (also called Cars or Freight Cars, originally Foolish Freight Cars, in the US)		Open wagons which they carry goods on the North Western Railway and abroad, nicknamed because they can be very troublesome and love to play tricks on the engines.		Ben Small (2013–2014) Christopher Ragland (2015–2021) Jai Armstrong (All Engines Go)	Ben Small (2013–2014) Christopher Ragland (2015–2021) Jamie Watson and Cory Doran (All Engines Go)
Annie and Clarabel		Thomas' faithful coaches whom he loves dearly. They are a pair of orange-brown four-wheeled coaches who work on the North Western Railway. Annie can only take passengers, but Clarabel can take passengers, luggage, and the guard. The pair usually work on the Ffarqhuar Branch Line with Thomas.	LB&SCR Stroudley Coaches	Teresa Gallagher (2011–2020) Wendy Patterson (All Engines Go)	Teresa Gallagher (2011–2020) Catherine Disher (Annie) Linda Kash (Clarabel; All Engines Go)
Henrietta		A faithful tram coach who travels with Toby. Percy usually takes her when Toby is absent.	GER Wisbech & Upwell Tramway 4-Wheel Coach	Maggie Ollerenshaw
The Spiteful Brake Van		A troublesome brake van, who was subsequently crushed into pieces by Douglas, on the back of James' goods train.	British Railways Standard 20 Ton Brake Van
The Chinese Dragon		A colorful and exotic paper dragon. It is a popular sight for carnival and funfair specials.
Toad		Oliver's loyal brake van who escaped from scrap with the help of Douglas.	GWR 16 Ton "Toad" Brake Van	Joe Mills (2014-2017)
S.C.Ruffey		A cruel Troublesome Truck who is the ringleader of the other Troublesome Trucks. He was once split into pieces by Oliver, but in the end, he survived.	7-Plank Open Wagon
Old Slow Coach		A Great Western Railway clerestory brake coach, known for her luxurious interior.	Diagram E39 Falmouth Coupe Tri Brake Coach
Rocky		A large red breakdown crane who can lift heavy objects such as engines, coaches and trucks. He takes pride in his work and is always happy to help. He later becomes part of the Sodor Search and Rescue Team.	Ransomes & Rapier 45-Tonne Steam Crane	Matt Wilkinson	William Hope
Hector		A large coal hopper who is antagonistic at first, but later becomes good friends with Thomas and James. Hector stands for "Heavily Engineered Coal Truck On Rails".	Imperial Chemical Industries Bogie Hopper Wagon
Slip Coaches		Three Great Western bogie coaches that work with Duck on the Little Western. They are special as they can be uncoiled at stations, without the engine stopping. Duck affectionately refers to them as the "Slippies".	GWR Diagram F16 Double-Ended Slip Coaches	Jonathan Broadbent, Rebecca O'Mara and Steven Kynman
Judy and Jerome		The two large green breakdown cranes. They used to live in the station yard at Knapford, but are now situated at Arlesburgh Goods Yard to handle emergencies on the west side of Sodor.	Cowans Sheldon 30 Ton Breakdown Cranes	Teresa Gallagher (Judy) Tim Whitnall (Jerome)
Bradford		An officious and strict brake van who lives on the Mainland. He usually works with Samson.	London, Midland & Scottish Railway 20 Ton Brake Van	Rob Rackstraw
Hannah		A "hasty" coach that once travelled with Toby. In the twenty-first series episode, "Hasty Hannah", she is portrayed as Henrietta's wacky sister.	GER Wisbech & Upwell Tramway 4-Wheel Coach	Lucy Montgomery
An-An and Yin Long		Two Chinese coaches who help transport passengers on the China Railway.	LB&SCR Stroudley Coaches	See-See Hung (An-An) Winson Long (Yin Long)
Aubrey and Aiden		Shane's pair of coaches. Thomas met and worked with them during his time in Australia.	Pullman First Class Parlour Cars	Genevieve McCarty (Aubrey) Tim Bain (Aiden)
Lei		A Chinese van who helps transport goods and materials on the China Railway.		Windsor Long
Dexter		An old brake coach who was being abandoned on an overgrown siding, until he was rediscovered by Duck and restored as a mobile classroom.	LB&SCR Stroudley Brake Coach	Mark Moraghan
Beppe		A small coach from Italy who works with Lorenzo.	Turkish Sultan Abdulaziz's Private Coach	Vincenzo Nicoli
Bruno	43	A red autistic caboose who helps the engines with heavy deliveries. He has the ability to signal his feelings using his ladders, and there is a lantern mounted on his exterior to indicate his mood at any time. He also has ear defenders to use for loud noises.		Elliot Garcia (All Engines Go)	Chuck Smith (All Engines Go)

Name	Number	Description	Based on	Voiced by (UK)	Voiced by (US)
Terence		An orange caterpillar tractor who usually works near Thomas' Branch Line, and later McColl Farm and is driven by Farmer Finney. When Thomas first met Terence, he insulted him for having 'ugly' caterpillar tracks, but later regretted it and befriended Terence after he pulled him out of a snowdrift.	Caterpillar Model 70	Tom Stourton (2017–2019) Will Bridgewood (All Engines Go)	Tom Stourton (2017–2019) Kai Harris (All Engines Go second series) Milo Toriel McGibbon (All Engines Go third series)
Bertie		A red single-deck bus who works alongside Thomas' Branch Line. Bertie had a race with Thomas to Ffarquhar after claiming he was the faster of the two, but lost after having to stop at a traffic light.	Leyland Tiger	Rupert Degas (2011–2012) Keith Wickham (2013–2020)
Trevor		A traction engine who resides at the Wellsworth Vicarage Orchard and driven by Jem Cole. He was due to be broken up for scrap before he was saved by the Vicar of Wellsworth.	William Foster & Co. Traction Engine No. 14593	Nigel Pilkington	Christopher Ragland
Harold		A white and red helicopter who patrols the skies of the Island of Sodor, nicknamed "whirlybird" by the engines, searching for emergencies. When Harold first met Percy, he insulted the railways were "slow and out-of-date". Percy, who was cross at this when taking trucks, decided to race Harold to the New Harbour. He later becomes part of the Search and Rescue Team and is operated by two pilots.	Sikorsky S-55	Keith Wickham (2010–2020) Jai Armstrong (All Engines Go)	Kerry Shale (2010–2019) Bruce Dow (All Engines Go)
Big Mickey		A large hammerhead crane who works at Brendam Docks, alongside Cranky and Carly. He gains his first lines of dialogue as well as a face in the twenty-first series, and is the only character to appear in both Thomas & Friends and its sister series Tugs.	USN 20t Tower Crane	Rob Rackstraw
Bulgy		A double-decker bus with an ideological opposition to railways. His catchphrase is "Free the roads!"	AEC Regent III	Colin McFarlane
George		A grumpy green steamroller whose interactions with engines generally lead to trouble. Whenever he is flattening a road, he is seen rebelling by saying "Railways are no good! Turn them into roads! Pull 'em up! Turn them into roads!" Despite being bad-tempered and mean to the engines, he readily learns his lesson after the events of "Bye George!"	Aveling-Barford R class steamroller
Caroline		An elderly car owned by a cricketer from the Elsbridge Cricket Club. She tends to overheat when traveling at high speeds.	Morris Oxford Bullnose Saloon
Bulstrode		A self-propelled barge who used to work at Knapford Harbour, and later Brendam Docks, Kellsthorphe Wharf and other locations on the Island of Sodor. He now resides on a beach as a children's play structure.	1920s self-propelled coastal barge	Will Harrison-Wallace (All Engines Go)	Jamie Watson (All Engines Go)
Cranky		An olive green tower crane who works at Brendam Docks.	Tower Crane	Matt Wilkinson (2010–2020) Will Harrison-Wallace (All Engines Go)	Glenn Wrage (2010–2020) Cory Doran (All Engines Go)
Butch		A yellow and navy blue breakdown truck, equipped with a low loader. He later becomes part of the Sodor Search and Rescue Team.	Scammell Constructor	Rupert Degas (2011) Matt Wilkinson (2012–2016)	Glenn Wrage (2011–2012) Steven Kynman (2013–2016)
The Horrid Lorries		Three small lorries who were incredibly rude to the engines. They came to Sodor to take over the engines jobs, but were sent away following a series of accidents. All three have numberplates, which read "LOR 1", "LOR 2" and "LOR 3".	Foden OG lorries
Tiger Moth		A yellow and red biplane, who is described to be reckless and daring. In the magazines, Tiger Moth has a face.	Nieuport 17
Thumper		A bright red rock-pounding device with two arms and caterpillar tracks, used for loosen rocks at the quarry.
Elizabeth		A vintage Sentinel lorry, formerly owned by Sir Topham Hatt.	Sentinel DG4 steam lorry
Jeremy		A jet plane who lives at the Sodor Airport.	BAC One-Eleven
Madge		A green and cream snub-nosed lorry with a three-wheeled cab and a flatbed.	Scammell Scarab
Colin		A green stationary steam crane who works at the Wharf and is good friends with Freddie.	100 Ton Steam Crane
Kevin		A yellow mobile crane who works at the Sodor Steamworks alongside Victor. Kevin's catchphrase is "Sorry, Boss, slip of the hook!" which is used most prominently from the thirteenth series to the sixteenth series.	Ransomes & Rapier crane	Matt Wilkinson (2009–2018) Kerry Shale (2017–2019)	Kerry Shale
Captain		A blue, red and yellow coast guard lifeboat who is part of the Search and Rescue Team.	Liverpool-class lifeboat	Keith Wickham
Merrick		A sleepy, snoring gantry crane who is stationed at the Blue Mountain Quarry.	Gantry Crane	Matt Wilkinson
Owen		An orange incline engine who is stationed at the Blue Mountain Quarry.	Dinorwic Slate Quarry Incline	Ben Small (2012–2014) Rob Rackstraw (2019–2020)
Reg		A rail-based grappling crane who works at Crocks Scrap Yard on Edward's Branch Line.	Reg's Basis	Tim Whitnall
Beresford		A blue rolling gantry crane who works at a canal on the Mainland. He speaks with a Jamaican accent.	Stothert & Pitt Rolling Gantry Crane	Colin McFarlane (2017–2020) Matt Coles (All Engines Go)	Colin McFarlane (2017–2020) Dan Chameroy (All Engines Go)
Carly		A yellow rolling gantry crane who works at Brendam Docks with Cranky and Big Mickey. In the All Engines Go reboot series, she has become a crane engine who lives and works on the Island of Sodor. She is close friends with Sandy and co-works with her at their maintenance yard.	Four-link portal harbour crane	Lucy Montgomery (2017–2020) Eva Mohamed (All Engines Go)	Lucy Montgomery (2017–2020) Jenna Warren (All Engines Go)
Ace	43	An Australian rally car who inspired Thomas to become the first engine to travel the world.	Triumph Spitfire	Peter Andre
Emerson		A Brazilian twin-engined turboprop airplane.	Beechcraft Super King Air	Gabriel Porras
Cassia		A rolling portal crane who works at Gunabara Bay in Brazil. She is good friends with Gabriela.	Four-link portal harbour crane	Teresa Gallagher (2018) Laura Cucurullo (2019) Rachael Miller (2020)
Isla		A fixed-wing air ambulance who works with Doctor Claire. She befriends Thomas during his time working in Australia. She is the same type of plane as Emerson.	Beechcraft Super King Air	Rachael Miller
Ester	33	A small excavator who works for the Italian Construction Company.	Construction Vehicle	Flaminia Cinque
Stefano		A huge amphibious cargo ship from Sicily, Italy. He can run on both water and land.	LARC-LX	Antonio Magro
Cleo		A road engine who was built by Ruth out of locomotive parts, giving her an unusual appearance.	Unique Futuristic Steam Train	Harriet Kershaw
Tess		A teal rolling gantry crane who works at Kellsthorphe Wharf. She is based on Carly's original design.	Four-link portal harbour crane	Celeste Waldron (All Engines Go)	Kaia Oz (All Engines Go)

In the sixth series, a new set of characters was introduced called "The Pack". The characters were devised by then-producer Phil Fehrle with the intention of being turned into a spin-off series, possibly as a rival to HIT Entertainment's other successful show and brand Bob the Builder. This spin-off was partially filmed alongside the seventh series the following year but was not aired. The few completed episodes were released direct-to-DVD in 2006.

Name	Number	Description	Based on	Voiced by (UK)	Voiced by (US)
Nelson	10	A ballast tractor who works for the Sodor Construction Company. His job is to haul members of the construction team, workers and the Pack to and from work.	Scammell lorry
Jack	11	A friendly and enthusiastic front loader who works for the Sodor Construction Company. He was intended to be the main character of the spin-off.	Nuffield Universal	Steven Kynman	David Menkin
Alfie	12	A little green excavator who works for the Sodor Construction Company. His motto is "More help means more dirt; more dirt means more fun!"	1960 K1C10&K Excavator	Nathan Clarke (2015–2016) Tom Stourton (2019)
Oliver	14	A big excavator who works for the Sodor Construction Company. He carries out demolition and digging work and is capable of switching between different tools, including his usual bucket, a chisel for digging, a scissor claw, and a wrecking ball for demolition, plus a jackhammer. Oliver is not to be confused with Oliver the Great Western Engine.	1976 235 Excavator	Tim Whitnall
Max and Monty	15 and 16	Reckless and troublesome red dump truck twins who work for the Sodor Construction Company.	1949 Scammell Mountaineer	Tim Whitnall and Rasmus Hardiker (2016)	Kerry Shale and Rob Rackstraw (2019)
Kelly	17	A mobile crane lorry who works for the Sodor Construction Company. He is the leader and the oldest member of the Pack and originally belonged to Miss Jenny's father.	Thorncroft Amazon Amazon Coles Crane lorry/Austin K6 lorry
Byron	18	A giant bulldozer with a big blade belonging to the Sodor Construction Company.	Caterpillar D9
Ned	19	A steam shovel who works for the Sodor Construction Company.	Brownings steam shovel
Isobella	22	A yellow steam lorry who works for the Sodor Construction Company. She looks almost identical to Elizabeth.	Sentinel GD4 lorry
Patrick	23	A cement mixer truck who works for the Sodor Construction Company.	Mack NM 6-ton 6x6 truck
Brenda	24	A bulldozer who works for the Sodor Construction Company. She, along with the rest of the construction vehicles, come to Italy to assist with her archaeological dig.	Caterpillar D9	Teresa Gallagher
Buster		A simple steamroller who goes about his job with glee, pride and content. He looks almost identical to George and works for the Sodor Construction Company.	Aveling & Porter R10
Darcy		A tunnel boring machine who works for the Sodor Construction Company, and later the mines underneath Lookout Mountain.	Roadheader	Harriet Kershaw (2019) Jessica Carroll (All Engines Go)	Harriet Kershaw (2019) Dana Puddicombe (All Engines Go)